CVE-2024-56654 Affecting kernel-rt-debug-devel package, versions *


Severity

Recommended
0.0
medium
0
10

Based on Red Hat Enterprise Linux security rating.

Threat Intelligence

EPSS
0.05% (18th percentile)

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  • Snyk IDSNYK-RHEL7-KERNELRTDEBUGDEVEL-8552929
  • published28 Dec 2024
  • disclosed27 Dec 2024

Introduced: 27 Dec 2024

NewCVE-2024-56654  (opens in a new tab)

How to fix?

There is no fixed version for RHEL:7 kernel-rt-debug-devel.

NVD Description

Note: Versions mentioned in the description apply only to the upstream kernel-rt-debug-devel package and not the kernel-rt-debug-devel package as distributed by RHEL. See How to fix? for RHEL:7 relevant fixed versions and status.

In the Linux kernel, the following vulnerability has been resolved:

Bluetooth: hci_event: Fix using rcu_read_(un)lock while iterating

The usage of rcu_read_(un)lock while inside list_for_each_entry_rcu is not safe since for the most part entries fetched this way shall be treated as rcu_dereference:

Note that the value returned by rcu_dereference() is valid
only within the enclosing RCU read-side critical section [1]_.
For example, the following is **not** legal::

rcu_read_lock();
p = rcu_dereference(head.next);
rcu_read_unlock();
x = p->address;	/* BUG!!! */
rcu_read_lock();
y = p->data;	/* BUG!!! */
rcu_read_unlock();

CVSS Scores

version 3.1